I am currently using RBase 6.5++ for Windows and have a table to track events our volunteers work. One field is "StartTime" and another is "Endtime" (both are "Time" data type and HH:MM format). I wanted to create another field in the table that would calculate the hours . I tried by defining the field a data type time and created an expression [ Endtime-Starttime). However I get an error saying it is not the same data type.
Can someone help me with this. Thanks, Duncan

